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Old 9th September 2008, 23:24
Tony Williams Tony Williams is offline
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Tony Williams
Re: About WW2 fighter aircraft firing power

Two-point harmonisation was also used by some US fighters. I have a diagram of a P-47's harmonisation which is exactly the same as Peter described - 250 and 350 yards. I have also read that some pilots set each pair of .50s to converge at a different range. This meant that they never had really concentrated fire at any range, but moderate concentration at all ranges.
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